Punuptech

The goto statement is used to alter the normal sequence of program instructions by transferring the control to some other portion of the program.

Syntax

goto label;

label : statement;

label is an identifier that is used to label the statement to which control will be transferred.

Example:

Program to print first 10 even numbers.

#include<stdio.h>

void main()

{

int i=2;

while(1)

{

printf(”%d  “,i);

i=i+2;

if(i>=20)

goto outside;

}

outside : printf(”over”);

}

Output:

2  4  6  8  10  12  14  16  18  20  over

Applications

1. To branch around statements under certain conditions in place of use of if-else statement.
2. To jump the end of the loop under certain conditions by passing the rest of the statements inside the loop in place of continue statement.
3. To jump out of the loop avoiding the use of break statement.

Note

• goto can never be used to jump into the loop from outside and it should be preferably used for forward jump.
• The usage of the goto keyword should be avoided as it usually violates the normal flow of execution.

written by Shweta